One of the running jokes are the immediate responses given to anyone who calls.
- Have you tried turning it off and on?
- Are you sure it's plugged in?
My kids often track me down when the computer, cell phone, Wii or some of our many other tech devices don't work. Almost invariably I solve the problem by turning the device off and on, and in one case my daughter's cell phone wasn't charging because the charger wasn't plugged into the outlet. So I just remind them of the IT rules and they laugh but they'll forget for the next time.
So just remember: When in doubt, reboot. Too bad this usually doesn't work for fixing proofs.